Re: OSPF multi-level hierarchy: Necessary at all?
Alex Zinin <zinin@amt.ru> wrote:
We're currently discussing necessity of multi-level hierarchy in OSPF on the WG mail list. ... but the main question is whether there is a demand for it or not.
I guess the answer is pretty much not. The amount of interior routing information in a properly designed backbone is quite small even if there is no two-layer abstraction. (Now, the _exterior_ information is aplenty, but OSPF is useless for it anyway). If someone proposed simplifying and cleaning up OSPF i'd be quite for it. Building a protocol allowing to get rid of iBGP hack would also help :) --vadim
I guess the answer is pretty much not. The amount of interior routing information in a properly designed backbone is quite small even if there is no two-layer abstraction. (Now, the _exterior_ information is aplenty, but OSPF is useless for it anyway).
If someone proposed simplifying and cleaning up OSPF i'd be quite for it. Building a protocol allowing to get rid of iBGP hack would also help :)
Yep, it's the main headache for ISP, just as a lack of control ober EBGP (I can't control incoming traffic except tricky AS-PREPENT and _working for one ISP only_ COMMUNITIES). Through if someone build distributed (withouth one AS and one back-bone) model of OSPF - may be, it's interesting.
--vadim
Aleksei Roudnev, Network Operations Center, Relcom, Moscow (+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 230-41-41, N 13729 (pager) (+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax)
participants (2)
-
Alex P. Rudnev -
Vadim Antonov